Titlebook: Digital Image Processing; Concepts, Algorithms Bernd J?hne Book 19932nd edition Springer-Verlag Berlin Heidelberg 1993 Bildfolgen.Mustererk

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Image Formation and Digitization,ages requires a good understanding of the image formation process. Only with a profound knowledge of all the steps involved in image acquisition, is it possible to interpret the contents of an image correctly. The steps necessary for an object in the three-dimensional world to become a digital image in the memory of a computer are as follows:

Compatriot

Space and Wave Number Domain,and digitization. Throughout the whole discussion in the last chapter we used the continuous Fourier transform. Proceeding now to discrete imagery, the question arises whether there is a discrete analogue to the continuous Fourier transform. Such a transformation would allow us to decompose a discrete image directly into its periodic components.

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Neighborhoods,eighborhood, we are within an area of constant gray values. This could mean that the neighborhood is included in an object. If the gray value changes, we might be at the edge of an object. In this way, we recognize areas of constant gray values and edges.

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Motion,y to motion pictures. Only in image sequences can we recognize and analyze dynamic processes. Thus the analysis of image sequences opens up far-reaching possibilities in science and engineering. A few examples serve as illustration:

achlorhydria

coagulation

Strange Occurrences in Life’s Channelsages requires a good understanding of the image formation process. Only with a profound knowledge of all the steps involved in image acquisition, is it possible to interpret the contents of an image correctly. The steps necessary for an object in the three-dimensional world to become a digital image in the memory of a computer are as follows:

是限制

CRAMP

heckle

裂口

Rong Wang,Steve W. Cotten,Rihe Liucontinuous . (DVF) can be estimated. The idea is to collect the sparse velocity information obtained with the local operations discussed in the last chapter and to compose it into a consistent picture of the motion in the scene observed.